Implement Process.Run, RunAsync, RunAndCaptureText, RunAndCaptureTextAsync APIs

src/libraries/System.Diagnostics.Process/ref/System.Diagnostics.Process.cs

@@ -176,6 +176,38 @@ protected void OnExited() { }
         public void Refresh() { }
         [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("ios")]
         [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("tvos")]
+        [System.Runtime.Versioning.SupportedOSPlatformAttribute("maccatalyst")]
+        public static System.Diagnostics.ProcessExitStatus Run(System.Diagnostics.ProcessStartInfo startInfo, System.TimeSpan? timeout = default(System.TimeSpan?)) { throw null; }
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("ios")]
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("tvos")]
+        [System.Runtime.Versioning.SupportedOSPlatformAttribute("maccatalyst")]
+        public static System.Diagnostics.ProcessExitStatus Run(string fileName, System.Collections.Generic.IList<string>? arguments = null, System.TimeSpan? timeout = default(System.TimeSpan?)) { throw null; }
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("ios")]
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("tvos")]
+        [System.Runtime.Versioning.SupportedOSPlatformAttribute("maccatalyst")]
+        public static System.Diagnostics.ProcessTextOutput RunAndCaptureText(System.Diagnostics.ProcessStartInfo startInfo, System.TimeSpan? timeout = default(System.TimeSpan?)) { throw null; }
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("ios")]
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("tvos")]
+        [System.Runtime.Versioning.SupportedOSPlatformAttribute("maccatalyst")]
+        public static System.Diagnostics.ProcessTextOutput RunAndCaptureText(string fileName, System.Collections.Generic.IList<string>? arguments = null, System.TimeSpan? timeout = default(System.TimeSpan?)) { throw null; }
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("ios")]
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("tvos")]
+        [System.Runtime.Versioning.SupportedOSPlatformAttribute("maccatalyst")]
+        public static System.Threading.Tasks.Task<System.Diagnostics.ProcessTextOutput> RunAndCaptureTextAsync(System.Diagnostics.ProcessStartInfo startInfo, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("ios")]
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("tvos")]
+        [System.Runtime.Versioning.SupportedOSPlatformAttribute("maccatalyst")]
+        public static System.Threading.Tasks.Task<System.Diagnostics.ProcessTextOutput> RunAndCaptureTextAsync(string fileName, System.Collections.Generic.IList<string>? arguments = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("ios")]
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("tvos")]
+        [System.Runtime.Versioning.SupportedOSPlatformAttribute("maccatalyst")]
+        public static System.Threading.Tasks.Task<System.Diagnostics.ProcessExitStatus> RunAsync(System.Diagnostics.ProcessStartInfo startInfo, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("ios")]
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("tvos")]
+        [System.Runtime.Versioning.SupportedOSPlatformAttribute("maccatalyst")]
+        public static System.Threading.Tasks.Task<System.Diagnostics.ProcessExitStatus> RunAsync(string fileName, System.Collections.Generic.IList<string>? arguments = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("ios")]
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("tvos")]
         [System.Runtime.Versioning.SupportedOSPlatformAttribute("maccatalyst")] // this needs to come after the ios attribute due to limitations in the platform analyzer
         public bool Start() { throw null; }
         [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("ios")]
@@ -320,6 +352,14 @@ public ProcessStartInfo(string fileName, System.Collections.Generic.IEnumerable<
         [System.Diagnostics.CodeAnalysis.AllowNullAttribute]
         public string WorkingDirectory { get { throw null; } set { } }
     }
+    public sealed partial class ProcessTextOutput
+    {
+        public ProcessTextOutput(System.Diagnostics.ProcessExitStatus exitStatus, string standardOutput, string standardError, int processId) { throw null; }
+        public System.Diagnostics.ProcessExitStatus ExitStatus { get { throw null; } }
+        public int ProcessId { get { throw null; } }
+        public string StandardError { get { throw null; } }
+        public string StandardOutput { get { throw null; } }
+    }
     [System.ComponentModel.DesignerAttribute("System.Diagnostics.Design.ProcessThreadDesigner, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
     public partial class ProcessThread : System.ComponentModel.Component
     {

src/libraries/System.Diagnostics.Process/src/Resources/Strings.resx

@@ -363,8 +363,11 @@
   <data name="InheritedHandles_MustNotContainDuplicates" xml:space="preserve">
     <value>InheritedHandles must not contain duplicates.</value>
   </data>
-  <data name="StartAndForget_UseShellExecuteNotSupported" xml:space="preserve">
-    <value>UseShellExecute is not supported by StartAndForget. On Windows, shell execution may not create a new process, which would make it impossible to return a valid process ID.</value>
+  <data name="UseShellExecuteNotSupportedForScenario" xml:space="preserve">
+    <value>UseShellExecute is not supported by Process.{0}. On Windows, shell execution may not create a new process, which would make it impossible to return a valid process ID.</value>
+  </data>
+  <data name="RedirectStandardOutputAndErrorRequired" xml:space="preserve">
+    <value>RedirectStandardOutput and RedirectStandardError must both be set to true when calling Process.{0} with a ProcessStartInfo.</value>
   </data>
   <data name="NotSupportedForNonChildProcess" xml:space="preserve">
     <value>On Unix, it's impossible to obtain the exit status of a non-child process.</value>

src/libraries/System.Diagnostics.Process/src/System.Diagnostics.Process.csproj

@@ -24,6 +24,7 @@
     <Compile Include="System\Diagnostics\Process.Scenarios.cs" />
     <Compile Include="System\Diagnostics\ProcessExitStatus.cs" />
     <Compile Include="System\Diagnostics\ProcessOutputLine.cs" />
+    <Compile Include="System\Diagnostics\ProcessTextOutput.cs" />
     <Compile Include="System\Diagnostics\ProcessInfo.cs" />
     <Compile Include="System\Diagnostics\ProcessModule.cs" />
     <Compile Include="System\Diagnostics\ProcessModuleCollection.cs" />